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Colt's Armory Testing Machine...
Item # 211700
March 16, 1872
SCIENTIFIC AMERICAN, New York, March 16, 1872 This 16 page issue is in nice condition and contains illustrations of the latest inventions of the day including: the "COLT ARMORY TESTING MACHINE", "Extention Ladder", "Firearm Projectile", "Water Wheel Governor", "Saw Filing Machine" and much more. These illustrations also have text that goes along with them.
The advertisements are very interesting as well, from the days when many of the normal things we use today were just being invented.
This is complete in 16 pages. See photos for details.
Category: Post-Civil War